Question 16 A political scientist is interested in the relationship between some
ID: 3244247 • Letter: Q
Question
Question 16
A political scientist is interested in the relationship between someone's political views and his or her optimism about the future. A random sample of 1102 American adults 18 and over was taken and the following questions were asked:
1). What are your political views (conservative, slightly conservative, moderate, slightly liberal, liberal)?
(This variable is called "POLITICS" for short).
2). When your children are the age you are at right now, what do you believe their standard of living will be (much worse, somewhat worse, about the same, somewhat better, much better)?
(This variable is called "OPTIMISM" for short).
The researcher decides to conduct a chi-squared test of independence at the 0.05 level of significance. What are the null and alternative hypotheses?
H0 : POLITICS = OPTIMISM
H1: POLITICS is not equal to OPTIMSM
H0 : POLITICS and OPTIMISM are independent
H1: P(POLITICS) > P(OPTIMISM)
H0 : POLITICS and OPTIMISM are independent
H1: POLITICS and OPTIMSM are dependent
H0: p1= p2= p3 = p4 = p5 = 0.2
H1: at least one of the p's is not equal to its specified value
H0: µPolitics - µOptimism = 0
H1: µPolitics - µOptimism 0
H0 : POLITICS and OPTIMISM are dependent
H1: POLITICS and OPTIMSM are independent
H0 : POLITICS = OPTIMISM
H1: POLITICS is not equal to OPTIMSM
H0 : POLITICS and OPTIMISM are independent
H1: P(POLITICS) > P(OPTIMISM)
H0 : POLITICS and OPTIMISM are independent
H1: POLITICS and OPTIMSM are dependent
H0: p1= p2= p3 = p4 = p5 = 0.2
H1: at least one of the p's is not equal to its specified value
H0: µPolitics - µOptimism = 0
H1: µPolitics - µOptimism 0
H0 : POLITICS and OPTIMISM are dependent
H1: POLITICS and OPTIMSM are independent
Explanation / Answer
right choice is third
here there are two attributes POLITICS AND OPTIMISM
to find out weather politics and optism are indpendent then we use chi-square for inependent of attributes and
null hypothesis H0 : POLITICS and OPTIMISM are independent
alternate hypothesis H1: POLITICS and OPTIMSM are dependent